Charles ii



(No Model.) O. H. OOOLEY.

REGULATOR FOR GRAIN WEIGHERS.

No. 447,721. Patented Mar. 3, 1891.

UNITED STATES PATENT @rrrcn.

CHARLES H. OOOLEY, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE PRATT & \VHITNEY COMPANY, OF SAME PLACE.

REGULATOR FOR GRAIN-WEIGHERS.

SPECIFICATION forming part of Letters Patent No. 447,721, dated March 3, 1891.

Application filed January 31, 1890. Serial No. 338,817. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES H. COOLEY, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Regulators for GrainlVeighers, of which the following is a specification.

This invention relates to regulators for antomatically controlling the operation of grainweighers, the object being to regulate the supply of grain to a grain-receiving machine by retarding as required the operation of the grain-weigher delivering grain to such machine or receiver.

In the drawings accompanying and forming a part of this specification,Figure 1 is a side elevation of my regulator apparatus as applied to an automatic grain'weigher, some parts being broken away and some other parts removed. Fig. 2 is a view similar to the upper portion of Fig. 1, showing the valves in a clifferent position.

Similar characters designate like parts in all the figures.

This invention is in the nature of an improvement 0n the regulator apparatus shown and described in Letters Patent of the United States No. 403,988, granted to me May 28, 1889.

The frame-work for carrying the operative parts of this machine usually, and as shown in the drawings, comprises two side frames or uprights 2 and at, held together by the top plate 5, carrying the supply-chute H, and by usual tie-rods. (Not shown.)

The grain-bucket G is of the usual doublechambered type or class used in the wellknown Hill grain-scale. The usual and necessary means for supporting and operating the said bucket are or may be the'same as shown and described for said purpose in said Letters Patent No. 403,988. The grain-bucket G is here shown in its proper position, the scale-beam, hangers, &o., being removed. The journals of said bucket are designated by the numeral 43 and the discharge-chutes by 39 and 41, respectively.

The numeral 9 designates the usual pivots or knife-edges on which the scale-beam rests. In this type or class of grain-weighers two valves are employechoue 76 being the reducing-valve and the other 74 being the cut-off valve, which valves together normally close the chute on the bucket G going below the poising-point.

Referring to Fig. 1, the main or reducing valve 76 is supported by two'arms, (designated by '7 5 and 75 and located one ator near each end of said valve,) which arms are fixed to the pivot or valve shaft 72, that is journaled in suitable bearings, as 71, formed on the supply-chute H. The supplemental or cut-off valve 74: is supported in a similar manner by arms 7 3 and 7 3, which are shown suspended from pivots, as 105, fixed in the sides of the supply-chute H. Said supplemental valve, as arranged in the drawings, closes underneath the supply-chute above described, and the two valves close toward each other and meet in substantially the same plane.

The regulator-valve 95 is suspended by arms 96 and 96, pivoted at some convenient point, as 70, to the sides of the supply-chute H, said valve being operated from some suitable regulator, as the hopper P, .located below the grain-bucket and operated by the accumulation of discharged grain. The said hopper, which is of the usual form, having a continuously-open outlet in the bottom thereof,"is pivoted to the uprights 2 and 4: of theframework and is furnished with the lever L, carrying the usual counter-weight 92. A connecting-rod 97 is connected to said lever at 98, and at its upper end is connected at 99 to one arm of the angle-lever 100, which lever is pivoted at 101 to the upright 4 of the frame-work. A rod 102 is connected at one end to the other arm of the angle-lever 100 and at its other end is pivot-ally connected to the arm 96' of the regulator-valve 95, thus completing the connections between the regulator P and said regulator-valve. When the grain accumulates sufficiently in the regulator to overbalance the counter-weight, the regulator descends and through some suitable connections, substantially as described, closes the regulator-valve below both of the grain-weigher valves.

In Fig. 1 the reducing-valve is shown closed, the supplemental or cut-off valve and the regulator-valve being fully open. I11 Fig. 2 both the reducing and the cut-oil valves are in the same position as in Fig. l, but the regulatorvalve J5 is shown closed, having been operated by the hopper and connections described. These several Iigu res illustrate how the several valves cooperate to cut off the grain, whatever position the grain-\veighcr valves may occupy, and show how the regulator-valve is below both the grain-weigher valves, thus acting as an effectual safeguard against leakage of grain past either of the above valves.

In practice, owing to the unyielding nature of the grain and to the impurities and foreign matter therein, it is found that either the one or the other of the grain-weigher valves will not fully close, thus leaving a slight leakage, while the supply-chute is normally closed. For this reasomwhen the regulator-valve operates in connection with the upper or red uclng grain-Weigher valve, as in my aforesaid Letters Patent, there is sometim es a failure to fully cut 01f the drip by the closing of the regulator-valve.

As a means for operating the regulatorchute and together acting to normally close 4 said chute, a valve movable below the reducing and cut-oi]? valves and having its closing movement corresponding to the closing movement of the cut-off valve and opposite to the closing movement of the reducing-valve, and means for actuating the lower valve, substantially as described.

CHARLES ll. COOLEY. Vitnesses:

W. M. BYORKMAN, linmiv L. RECKARD. 

